CN110877120A - High-efficient branch bits milling cutter that can be used to deep hole reaming processing - Google Patents
High-efficient branch bits milling cutter that can be used to deep hole reaming processing Download PDFInfo
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- CN110877120A CN110877120A CN201911343410.5A CN201911343410A CN110877120A CN 110877120 A CN110877120 A CN 110877120A CN 201911343410 A CN201911343410 A CN 201911343410A CN 110877120 A CN110877120 A CN 110877120A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/02—Milling-cutters characterised by the shape of the cutter
- B23C5/10—Shank-type cutters, i.e. with an integral shaft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/28—Arrangement of teeth
- B23C2210/287—Cutting edges arranged at different axial positions or having different lengths in the axial direction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/40—Flutes, i.e. chip conveying grooves
Abstract
The invention discloses a high-efficiency chip-dividing milling cutter for deep hole reaming, and belongs to the technical field of milling cutters. The efficient chip-dividing milling cutter comprises a cutter handle and a cutting part, wherein the cutting part is provided with 4-12 spiral cutting edges distributed in the circumferential direction, the cutting edges have unequal structure in the circumferential direction, and the difference between the maximum value and the minimum value of the included angle between the end edges of two adjacent cutting edges is 3.5-9 degrees; each cutting edge is provided with a plurality of chip separating grooves at intervals along the axial direction, and the chip separating grooves on the cutting edges are staggered in the axial direction. The efficient chip-dividing milling cutter adopts an unequal design combined with a staggered tooth design of a chip-dividing groove, effectively reduces vibration in the processing process of the chip-dividing milling cutter, is beneficial to cutting component force, improves processing precision and processing efficiency, can be used for deep hole reaming processing, deep square shoulder milling, deep groove milling and the like, has controllable chip size, can form fine chips, is convenient for chip cleaning, and is more perfect for processing parts with special requirements on chip formation.
Description
Technical Field
The invention relates to a milling cutter, in particular to a high-efficiency chip-dividing milling cutter which can be used for deep hole reaming.
Background
A milling cutter is a rotary tool for milling having one or more cutter teeth which, in operation, each cutter tooth intermittently cuts off the remainder of a workpiece in sequence. The milling cutter is mainly used for processing planes, steps, grooves, formed surfaces, cut-off workpieces and the like on a milling machine. According to different processing characteristics, common product types of the milling cutter are a cylindrical milling cutter, a face milling cutter, an end milling cutter, a face milling cutter, an angle milling cutter, a saw blade milling cutter, a T-shaped milling cutter and the like.
The milling cutter which can be used for reaming processing can be called as a reaming milling cutter, the structure of the milling cutter generally comprises a cutter handle and a reaming milling part, the reaming milling part is generally used for side milling of a workpiece, chips generated in the milling cutter processing are generally long, long chips are difficult to remove, the surface of a processed product is easy to scratch, the roughness of the processed surface is poor, the long chips are difficult to clean, porous parts are easy to block pore channels, and the milling cutter is generally difficult to be used for deep hole processing. The Chinese patent application No. 201310567409.7, published as 2014, 2, 12, is named as: the utility model provides a but end mill of chip breaking, this application relates to an end mill of chip breaking, including handle of a knife and tool bit, the tool bit is provided with side cutting edge and undercut cutting edge, side cutting edge includes two cutting edges and two ripple cutting edges, cutting edge and ripple cutting edge interval set up, be provided with spiral helicine lateral part chip pocket respectively between cutting edge and the ripple cutting edge, the helix angle is 40 +/-2, the edge bandwidth of cutting edge and ripple cutting edge is 20 +/-1 mm, the edge inclination is 3-5, undercut cutting edge is provided with four, be provided with the bottom chip pocket between the adjacent undercut cutting edge. This patent application adopts cutting edge and ripple cutting edge integrated design to realize milling cutter branch bits effect, has certain branch bits effect, nevertheless adopts cutting edge and ripple cutting edge integrated design also to lead to milling cutter to mill efficiency and machining precision and be difficult to obtain further promotion.
The milling cutter with corrugated cutting edges is commonly called a corn milling cutter, and the corn milling cutter is generally used for side milling rough machining, for example, the corn milling cutter disclosed by the Chinese patent application No. 200810209547.7 is named as a double-head wave edge type corn milling cutter, the cutter body of the double-head wave edge type corn milling cutter is externally provided with circumferential teeth, and cutting edges of the circumferential teeth are provided with double-head wave edge type chip splitting grooves. The corn milling cutter of the type also has a good chip separation effect, but cannot be used for deep hole reaming and milling, and can only be used for rough machining.
Disclosure of Invention
1. Technical problem to be solved by the invention
The invention aims to overcome the defects of low processing precision and processing efficiency, difficult high-precision processing of deep holes or deep grooves and the like of the existing chip dividing milling cutter, and provides a high-efficiency chip dividing milling cutter which can be used for deep hole reaming processing, and the like, by adopting the technical scheme of the invention, the high-efficiency chip dividing milling cutter adopts an unequal structure design, the difference between the maximum value and the minimum value of an included angle between end edges of two adjacent cutting edges is 3.5-9 degrees, a plurality of chip dividing grooves are arranged on each cutting edge along the axial direction at intervals, the chip dividing grooves on each cutting edge are staggered mutually in the axial direction, the unequal design is combined with the staggered teeth design of the chip dividing grooves, the vibration in the processing process of the chip dividing milling cutter is effectively reduced, the cutting component force is facilitated, the processing precision and the processing efficiency are improved, the chip dividing milling cutter can be used for deep hole reaming processing, deep square shoulder milling, deep groove milling and the like, can form fine chips and is convenient for chip cleaning.
2. Technical scheme
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
the invention relates to a high-efficiency chip-dividing milling cutter capable of being used for deep hole reaming, which comprises a cutter handle and a cutting part arranged at the front part of the cutter handle, wherein the cutting part is provided with 4-12 spiral cutting edges distributed in the circumferential direction, a spiral groove is formed between every two adjacent cutting edges, each cutting edge is provided with an end edge arranged on the end surface of the milling cutter and a circumferential edge arranged in the circumferential direction of the milling cutter, the cutting edges of the high-efficiency chip-dividing milling cutter have an unequal-division structure in the circumferential direction, and the difference between the maximum value and the minimum value of an included angle between the end edges of the two adjacent cutting edges on the end surface of the high-efficiency chip-; each cutting edge is provided with a plurality of chip separating grooves at intervals along the axial direction, and the chip separating grooves on the cutting edges are staggered in the axial direction.
Furthermore, at least one pair of included angle values between the end edges of two adjacent cutting edges is decimal.
Furthermore, the chip dividing groove is formed in the cutting edge along the circumferential direction of the efficient chip dividing milling cutter.
Furthermore, the cross section of the chip dividing groove is rectangular.
Further, the edge length dimension L3 between adjacent chip flutes on each cutting edge depends on the chip size.
Furthermore, the width L4 of the chip dividing groove is 0.5-1.5 mm.
Furthermore, the ratio of the length L2 of the cutting part to the diameter D1 of the cutting part is more than or equal to 3.
Furthermore, the number of the cutting edges of the cutting part is determined according to the diameter D1 of the cutting part, and when the diameter D1 of the cutting part is 6-12 mm, the cutting part has 4-5 cutting edges; when the diameter D1 of the cutting part is more than 12mm, the cutting part has 6-12 cutting edges.
Further, the end of each cutting edge has a front chamfer angle of 45 °.
Furthermore, the peripheral edge of the cutting edge adopts a double-relief angle design, and the double-relief angle is 12-24 degrees; the end edge back angle of the cutting edge is 10-23 degrees.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following remarkable effects:
(1) the invention relates to a high-efficiency chip-dividing milling cutter for deep hole reaming, wherein a cutting part of the milling cutter is provided with 4-12 spiral cutting edges distributed in the circumferential direction, each cutting edge is provided with an end edge arranged on the end surface of the milling cutter and a circumferential edge arranged in the circumferential direction of the milling cutter, the cutting edges have unequal structures in the circumferential direction, the difference between the maximum value and the minimum value of an included angle between the end edges of two adjacent cutting edges is 3.5-9 degrees, each cutting edge is provided with a plurality of chip-dividing grooves at intervals along the axial direction, and the chip-dividing grooves on each cutting edge are staggered with each other in the axial direction; the efficient chip-dividing milling cutter combines the staggered tooth design of the chip dividing groove through the unequal design of the cutting edges, the unequal design of the cutting edges can effectively reduce the vibration in the processing process of the chip-dividing milling cutter, the staggered tooth design of the chip dividing groove is favorable for cutting component force, the processing precision and the processing efficiency are greatly improved, and compared with the existing milling cutter, the efficient chip-dividing milling cutter can be used for deep hole reaming processing, deep square shoulder milling, deep groove milling and the like, the size of chips is controllable, small chips can be formed, and the chips are convenient to clean;
(2) according to the efficient chip-dividing milling cutter for deep hole reaming, at least one pair of included angle values between the end edges of two adjacent cutting edges is decimal, and due to the adoption of the unequal design of the cutting edges, the cutting vibration frequency of each cutting edge is different, the resonance of each cutting edge in the cutting process is further reduced, the precision of milling is ensured, the milling can be carried out at a higher cutting speed, and the processing efficiency is improved;
(3) according to the efficient chip-dividing milling cutter for deep hole reaming, the chip-dividing groove is formed in the cutting edge along the circumferential direction of the efficient chip-dividing milling cutter, and the cross section of the chip-dividing groove is rectangular, so that the chip-dividing groove is convenient to machine, the chip is more convenient to break, the chips are thinned, and particularly the chips in the deep hole or the deep groove are convenient to clean;
(4) according to the efficient chip-dividing milling cutter for deep hole reaming, the edge length L3 between two adjacent chip-dividing grooves on each cutting edge is determined according to the size of chips, the width L4 of each chip-dividing groove is designed to be 0.5-1.5 mm, the edge length of the peripheral edge of the cutter can be flexibly designed according to the machining requirement, and the service life of the cutter is prolonged;
(5) the invention provides a high-efficiency chip-dividing milling cutter for deep hole reaming, which has a ratio of the length L2 of a cutting part to the diameter D1 of the cutting part of 3 or more, and the number of edges of the cutting part is determined according to the diameter D1 of the cutting part, and can be used for deep hole reaming.
Drawings
FIG. 1 is a schematic perspective view of a high-efficiency chip-dividing milling cutter for deep hole reaming according to the present invention;
FIG. 2 is a schematic view of a portion of the enlarged structure at K in FIG. 1;
FIG. 3 is a schematic side view of a high-efficiency chip-separating milling cutter for deep hole reaming according to the present invention;
fig. 4 is a schematic diagram of an unequal-division design structure of the high-efficiency chip-dividing milling cutter which can be used for deep hole reaming.
The reference numerals in the schematic drawings illustrate:
1. a knife handle; 2. a cutting portion; 2-1, a cutting edge; 2-2, spiral groove; 2-3, end cutting edge; 2-4, chip dividing grooves; 2-5, front chamfer.
Detailed Description
For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings.
Referring to fig. 1 to 4, the efficient chip-splitting milling cutter for deep hole reaming according to the present invention includes a cutter holder 1 and a cutting part 2 disposed at a front portion of the cutter holder 1, wherein the cutting part 2 has 4 to 12 spiral cutting edges 2-1 distributed circumferentially, and the number of the cutting edges of the cutting part 2 is determined according to a diameter D1 of the cutting part 2, and in the present invention, when a diameter D1 of the cutting part 2 is 6 to 12mm, the cutting part 2 has 4 to 5 cutting edges 2-1, that is, a four-edge or five-edge design is adopted; when the diameter D1 of the cutting part 2 is larger than 12mm, the cutting part 2 has 6-12 cutting edges 2-1, namely, a six-edge or seven-edge or eight-edge design is adopted. The spiral groove 2-2 is arranged between every two adjacent cutting edges 2-1, the spiral groove 2-2 is used for containing chips and removing chips, each cutting edge 2-1 is provided with an end edge 2-3 arranged on the end surface of the milling cutter and a circumferential edge arranged on the circumferential direction of the milling cutter, the cutting edge 2-1 of the high-efficiency chip-dividing milling cutter has an unequal structure in the circumferential direction, the difference between the maximum value and the minimum value of an included angle between the end edges 2-3 of the two adjacent cutting edges 2-1 on the end surface of the high-efficiency chip-dividing milling cutter is 3.5-9 degrees, all included angles are different, and the unequal design of the cutting edges is adopted, so that the vibration in the processing process of the chip-dividing; meanwhile, a plurality of chip separating grooves 2-4 are formed in each cutting edge 2-1 at intervals along the axial direction, the chip separating grooves 2-4 in each cutting edge 2-1 are staggered in the axial direction, the chip separating grooves 2-4 cut off the peripheral edges of each cutting edge 2-1, a concave-convex sawtooth structure is formed on the surface, the staggered tooth design of the chip separating grooves is beneficial to cutting component force and can cut off chips to form fine chips, the unequal design of the cutting edges is combined with the staggered tooth design of the chip separating grooves, and the machining precision and the machining efficiency are greatly improved. The efficient chip-dividing milling cutter for deep hole reaming is similar to a corn milling cutter with corrugated cutting edges in appearance, compared with the corn milling cutter, the efficient chip-dividing milling cutter provided by the invention has the end edges and the peripheral edges, and has the cutting edges with unequal design and the chip dividing grooves with staggered teeth design, so that the efficient chip-dividing milling cutter is wider in processing application occasions, can be used for deep hole reaming, deep square shoulder milling, deep groove milling and the like, is controllable in chip size, can form fine chips, and is convenient for chip cleaning; and is suitable for rough machining and finish machining, and the machining surface roughness Ra is less than or equal to 0.8.
For the unequal design of the cutting edges, preferably, at least one pair of included angle values between the end edges 2-3 of two adjacent cutting edges 2-1 is decimal, and if at least one pair of included angles is a half-degree angle, experiments show that the unequal design is adopted, so that the cutting vibration frequencies of the cutting edges are different, the resonance of the cutting edges in the cutting process is further reduced, the precision of milling is ensured, the processing can be carried out at higher cutting speed, and the processing efficiency is improved.
In addition, as shown in fig. 3, in the present invention, the chip dividing groove 2-4 is formed on the cutting edge 2-1 along the circumferential direction of the high-efficiency chip dividing milling cutter, that is, the chip dividing groove 2-4 is arc-shaped on the cutting edge 2-1, the chip dividing groove 2-4 is perpendicular to the axial direction of the high-efficiency chip dividing milling cutter, and the cross-sectional shape of the chip dividing groove 2-4 is preferably rectangular, which not only facilitates the processing of the chip dividing groove 2-4, but also facilitates the chip breaking, makes the chips fine, and particularly facilitates the cleaning of the chips in the deep hole or the deep groove. The length L3 of the edge between two adjacent chip flutes 2-4 on each cutting edge 2-1 may depend on the size of the chip, the smaller the length L3, the shorter the length of the chip. The width L4 of the chip dividing groove 2-4 can be designed to be 0.5-1.5 mm, and the chip dividing groove 2-4 can be formed by relief grinding.
In the present invention, the ratio of the length L2 of the cutting portion 2 to the diameter D1 of the cutting portion 2 is 3 or more, and is particularly suitable for deep hole or deep groove machining of 3 times or more in diameter, and it is generally preferable to design the ratio of the length L2 of the cutting portion 2 to the diameter D1 of the cutting portion 2 to be 5 to 8 times. As shown in fig. 2, the end of each cutting edge 2-1 has a front chamfer 2-5, the front chamfer 2-5 being 45 °. The peripheral edge of the cutting edge 2-1 adopts a double-relief angle design, and the double-relief angle is 12-24 degrees; the back angle of the end edge 2-3 of the cutting edge 2-1 is 10 degrees to 23 degrees.
The present invention will be further described with reference to the following examples.
Examples
In this embodiment, the four-blade high-efficiency chip-splitting milling cutter shown in fig. 1 to 4 is taken as an example to further illustrate the design principle of the high-efficiency chip-splitting milling cutter which can be used for deep hole reaming according to the present invention. In the embodiment, the efficient chip-splitting milling cutter comprises a cutter handle 1 and a cutting part 2 integrally arranged at the front part of the cutter handle 1, wherein the cutting part 2 is provided with 4 spiral cutting edges 2-1 distributed circumferentially, a spiral groove 2-2 for chip removal is arranged between every two adjacent cutting edges 2-1, each cutting edge 2-1 is provided with an end edge 2-3 arranged on the end surface of the milling cutter and a peripheral edge arranged circumferentially of the milling cutter, and the end edge 2-3 and the peripheral edge are provided with relief angles. Different from the existing milling cutter, the cutting edge 2-1 of the high-efficiency chip-dividing milling cutter has an unequal-division structure in the circumferential direction, and the unequal-division structure of the cutting edge 2-1 is designed as follows: on the end face of the high-efficiency chip-splitting milling cutter, the difference between the maximum value and the minimum value of the included angle between the end edges 2-3 of two adjacent cutting edges 2-1 is 3.5-9 degrees, all the included angles are not equal, furthermore, at least one pair of the included angle values between the end edges 2-3 of two adjacent cutting edges 2-1 is decimal, if at least one pair of the included angles has a half-degree angle, as shown in figure 4, in four cutting edges 2-1, the included angles between two adjacent cutting edges 2-1 are 91 degrees, 93 degrees, 88.5 degrees and 87.5 degrees respectively, wherein two included angles have 0.5 degrees, and the difference between the maximum value and the minimum value of the included angles is 5.5 degrees, experiments show that the inequality design is adopted, so that the cutting vibration frequency of each cutting edge 2-1 is different, and the resonance of each cutting edge in the cutting process is further reduced, the precision of milling processing is guaranteed, processing can be carried out at a higher cutting speed, and the processing efficiency is improved. On the basis of unequal design of the cutting edges 2-1, each cutting edge 2-1 is also provided with a chip dividing groove 2-4 with staggered teeth design, the chip dividing grooves 2-4 on each cutting edge 2-1 are staggered in the axial direction, the chip dividing grooves 2-4 cut off the peripheral edges of each cutting edge 2-1, during machining, the peripheral edge is used for milling, the chip dividing grooves 2-4 break chips to form fine chips, and the staggered teeth design of the chip dividing grooves 2-4 is beneficial to cutting component force, reducing cutting resistance, improving machining efficiency and realizing one-time hole forming machining of deep holes. In addition, in the above-mentioned unequal design, the helix angles corresponding to the cutting edges 2-1 may also be designed to be different, in the present embodiment, the helix angles of two spaced cutting edges 2-1 are equal, and 35 ° and 36 ° helix angles can be respectively adopted, that is, the helix angles of four cutting edges 2-1 are 35 °, 36 °, 35 ° and 36 ° in sequence.
Referring to fig. 1, 2 and 3, in the present embodiment, the chip dividing groove 2-4 is formed on the cutting edge 2-1 along the circumferential direction of the high-efficiency chip dividing milling cutter, that is, the chip dividing groove 2-4 is arc-shaped on the cutting edge 2-1, the chip dividing groove 2-4 is perpendicular to the axial direction of the high-efficiency chip dividing milling cutter, and the cross-sectional shape of the chip dividing groove 2-4 is preferably rectangular, which not only facilitates the processing of the chip dividing groove 2-4, but also facilitates the chip breaking, makes the chips finer, and particularly facilitates the cleaning of the chips in the deep hole or the deep groove. The edge length L3 between two adjacent chip separation grooves 2-4 on each cutting edge 2-1 can be determined according to the size of the chip, the smaller the edge length L3 is, the shorter the length of the chip is, for example, the edge length L3 between two adjacent chip separation grooves 2-4 can be designed to be 3.5mm, the width L4 of the chip separation grooves 2-4 can be designed to be 1mm, and a concave-convex sawtooth type structure is formed on the peripheral edge of the cutting edge 2-1. The four-blade high-efficiency chip cutter of the present embodiment is particularly suitable for deep hole or deep groove machining, and therefore the ratio of the length L2 of the cutting portion 2 to the diameter D1 of the cutting portion 2 is generally set to 3 or more, and preferably the ratio of the length L2 of the cutting portion 2 to the diameter D1 of the cutting portion 2 is set to 5 to 8 times. In order to improve the strength of the cutting part 2, the core thickness diameter D2 of the cutting part 2 is preferably designed to be 0.6 times the diameter D1 of the cutting part 2. As shown in fig. 2, the end of each cutting edge 2-1 has a front chamfer 2-5, the front chamfer 2-5 preferably being 0.1mm x 45 °. The peripheral edge of the cutting edge 2-1 adopts a double-relief angle design, the double-relief angle is preferably 12-24 degrees, and the angle of the second peripheral edge relief angle is greater than that of the first peripheral edge relief angle; the end edge 2-3 relief angle of the cutting edge 2-1 is preferably 10 to 23 °.
The efficient chip-dividing milling cutter for deep hole reaming is designed in an unequal structure, the difference between the maximum value and the minimum value of the included angle between the end edges of two adjacent cutting edges is 3.5-9 degrees, a plurality of chip-dividing grooves are formed in each cutting edge at intervals along the axial direction, the chip-dividing grooves in each cutting edge are staggered in the axial direction, the unequal design is combined with the staggered tooth design of the chip-dividing grooves, vibration in the machining process of the chip-dividing milling cutter is effectively reduced, cutting component force is facilitated, machining precision and machining efficiency are improved, the efficient chip-dividing milling cutter can be used for deep hole reaming, deep square shoulder milling, deep groove milling and the like, the size of chips is controllable, fine chips can be formed, chip cleaning is facilitated, and part machining with special requirements is more perfect.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.
Claims (10)
1. The utility model provides a high-efficient branch bits milling cutter that can be used to deep hole reaming processing, includes handle of a knife (1) and locates the anterior cutting portion (2) of handle of a knife (1), cutting portion (2) have spiral cutting edge (2-1) that 4 ~ 12 circumference distribute, have helicla flute (2-2) between two adjacent cutting edge (2-1), every cutting edge (2-1) all has end sword (2-3) of locating on the milling cutter terminal surface and locates the week sword of milling cutter circumference, its characterized in that: the cutting edges (2-1) of the high-efficiency chip-dividing milling cutter have unequal-dividing structures in the circumferential direction, and the difference between the maximum value and the minimum value of an included angle between the end edges (2-3) of two adjacent cutting edges (2-1) on the end surface of the high-efficiency chip-dividing milling cutter is 3.5-9 degrees; a plurality of chip separation grooves (2-4) are formed in each cutting edge (2-1) at intervals along the axial direction, and the chip separation grooves (2-4) in each cutting edge (2-1) are staggered in the axial direction.
2. The high-efficiency chip-dividing milling cutter for deep hole reaming according to claim 1, wherein: at least one pair of included angle values between the end edges (2-3) of two adjacent cutting edges (2-1) is decimal.
3. A high-efficiency chip-dividing milling cutter for deep hole reaming according to claim 1 or 2, wherein: the chip dividing grooves (2-4) are formed in the cutting edges (2-1) along the circumferential direction of the efficient chip dividing milling cutter.
4. A high-efficiency chip-dividing milling cutter for deep hole reaming according to claim 3, wherein: the cross section of the chip dividing groove (2-4) is rectangular.
5. The high-efficiency chip-dividing milling cutter for deep hole reaming according to claim 4, wherein: the length L3 of the edge between two adjacent chip dividing grooves (2-4) on each cutting edge (2-1) is determined according to the size of the chip.
6. The high-efficiency chip-dividing milling cutter for deep hole reaming according to claim 5, wherein: the width L4 of the chip dividing groove (2-4) is 0.5-1.5 mm.
7. A high-efficiency chip-dividing milling cutter for deep hole reaming according to claim 1 or 2, wherein: the ratio of the length L2 of the cutting part (2) to the diameter D1 of the cutting part (2) is more than or equal to 3.
8. The high-efficiency chip-dividing milling cutter for deep hole reaming according to claim 7, wherein: the number of edges of the cutting part (2) is determined according to the diameter D1 of the cutting part (2), and when the diameter D1 of the cutting part (2) is 6-12 mm, the cutting part (2) has 4-5 cutting edges (2-1); when the diameter D1 of the cutting part (2) is larger than 12mm, the cutting part (2) has 6-12 cutting edges (2-1).
9. The high-efficiency chip-dividing milling cutter for deep hole reaming according to claim 8, wherein: the end part of each cutting edge (2-1) is provided with a front chamfer (2-5), and the front chamfer (2-5) is 45 degrees.
10. The high-efficiency chip-dividing milling cutter for deep hole reaming according to claim 9, wherein: the peripheral edge of the cutting edge (2-1) adopts a double-relief angle design, and the double-relief angle is 12-24 degrees; the clearance angle of the end edge (2-3) of the cutting edge (2-1) is 10-23 degrees.
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| CN111250768A (en) * | 2020-03-31 | 2020-06-09 | 湖南泰嘉新材料科技股份有限公司 | Milling cutter for processing special-shaped bottom edge of band saw blade, processing device and processing method |
| CN113333835A (en) * | 2021-04-27 | 2021-09-03 | 株洲钻石切削刀具股份有限公司 | Chamfering end mill |
| CN113510283A (en) * | 2021-07-15 | 2021-10-19 | 内蒙古第一机械集团股份有限公司 | Cutting tool and cutting process for titanium alloy material |
| CN116663193A (en) * | 2023-06-12 | 2023-08-29 | 哈尔滨理工大学 | Discrete edge end mill design method based on free cutting principle |
| CN116756869A (en) * | 2023-06-12 | 2023-09-15 | 哈尔滨理工大学 | Design method of discrete edge end mill with variable chip dividing groove parameters |
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2019
- 2019-12-24 CN CN201911343410.5A patent/CN110877120A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111250768A (en) * | 2020-03-31 | 2020-06-09 | 湖南泰嘉新材料科技股份有限公司 | Milling cutter for processing special-shaped bottom edge of band saw blade, processing device and processing method |
| CN111250768B (en) * | 2020-03-31 | 2021-09-10 | 湖南泰嘉新材料科技股份有限公司 | Milling cutter for processing special-shaped bottom edge of band saw blade, processing device and processing method |
| CN113333835A (en) * | 2021-04-27 | 2021-09-03 | 株洲钻石切削刀具股份有限公司 | Chamfering end mill |
| CN113510283A (en) * | 2021-07-15 | 2021-10-19 | 内蒙古第一机械集团股份有限公司 | Cutting tool and cutting process for titanium alloy material |
| CN113510283B (en) * | 2021-07-15 | 2023-04-25 | 内蒙古第一机械集团股份有限公司 | Cutting tool and cutting process for titanium alloy material |
| CN116663193A (en) * | 2023-06-12 | 2023-08-29 | 哈尔滨理工大学 | Discrete edge end mill design method based on free cutting principle |
| CN116756869A (en) * | 2023-06-12 | 2023-09-15 | 哈尔滨理工大学 | Design method of discrete edge end mill with variable chip dividing groove parameters |
| CN116663193B (en) * | 2023-06-12 | 2023-11-28 | 哈尔滨理工大学 | Discrete edge end mill design method based on free cutting principle |
| CN116756869B (en) * | 2023-06-12 | 2023-11-28 | 哈尔滨理工大学 | Design method of discrete edge end mill with variable chip dividing groove parameters |
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